EventStoreDB Ideas Portal

Ideas for improvements and new features in EventStoreDB, client libraries, and database extensions.

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Stability

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Chained replicas

Current implementation of read-only replicas require them to be connected to the cluster. It means that every new replica adds some overhead to the operational cluster nodes, particularly its leader. It creates limitation of the feature as one mig...
Alexey Zimarev 2 months ago in EventStoreDB / Performance / Stability 0

Projections next-gen

Move custom and standard projections to Connectors.
Alexey Zimarev 10 months ago in EventStoreDB / Performance / Stability 0 Planned

Persistent subscriptions next-gen

Seems like persistent subscriptions aim to solve two problems: Server-side checkpointing for use cases when events are being forwarded to a place that doesn't have the ability to store checkpoints (message brokers), or users just don't want to dea...
Alexey Zimarev 10 months ago in EventStoreDB / Dev experience / Performance / Stability 0

Handle backpressure

ESDB can be overloaded with read/write operations and it has no limitations enforced on the edge to prevent this. The idea is to set the connection limit (in general or per operation) and deny requests when the limit is exceeded. It will improve t...
Alexey Zimarev 10 months ago in EventStoreDB / Operations / Stability 0 Planned

Replication between clusters

Allow one cluster to mirror another. Could be similar to read-only replica, but instead of a single node that is known to the source cluster, the mirror would be a read-only replicated cluster. One use of it is to enable faster reads. If the "oper...
Alexey Zimarev 10 months ago in EventStoreDB / Operations / Stability 0

Automated Scavenging

Scavenging is a routine maintenance operation in ESDB, but it requires DB admins to run it either manually or using some automation like curl call to the DB API executed by cron. It's not only inconvinient, but also isn't optimal as scavenging nor...
Alexey Zimarev 10 months ago in EventStoreDB / Operations / Stability 0 Planned